Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755787Ab3JBSDG (ORCPT ); Wed, 2 Oct 2013 14:03:06 -0400 Received: from mail-pa0-f49.google.com ([209.85.220.49]:35429 "EHLO mail-pa0-f49.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754478Ab3JBSDE (ORCPT ); Wed, 2 Oct 2013 14:03:04 -0400 Message-ID: <524C5FD2.5050406@linaro.org> Date: Wed, 02 Oct 2013 11:02:58 -0700 From: John Stultz User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.0 MIME-Version: 1.0 To: Will Deacon CC: Stephen Boyd , "linux-kernel@vger.kernel.org" , "linux-arm-msm@vger.kernel.org" , "linux-arm-kernel@lists.infradead.org" , Thomas Gleixner , Russell King , Catalin Marinas , Christopher Covington , Barry Song , Fabio Estevam , Gregory CLEMENT , Jingchang Lu , Kukjin Kim , Kyungmin Park , Linus Walleij , Shawn Guo , Srinidhi Kasagar , Stephen Warren , Tomasz Figa Subject: Re: [PATCH v4 00/17] 64-bit friendly generic sched_clock() References: <1374189690-10810-1-git-send-email-sboyd@codeaurora.org> <51E88170.3080505@linaro.org> <20131002174700.GF30298@mudshark.cambridge.arm.com> In-Reply-To: <20131002174700.GF30298@mudshark.cambridge.arm.com> X-Enigmail-Version: 1.5.2 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1700 Lines: 38 On 10/02/2013 10:47 AM, Will Deacon wrote: > On Fri, Jul 19, 2013 at 12:59:44AM +0100, John Stultz wrote: >> On 07/18/2013 04:21 PM, Stephen Boyd wrote: >>> This patchset adds support for 64 bit counters in the generic >>> sched_clock code and converts drivers over to use it. Based >>> on v3.11-rc1. >>> >>> Changes since v3: >>> * Move to use seqcount to fix issues with 64-bit cyc counters >>> * Move to hrtimer to fix underflow/overflow errors in wraparound >>> calculation >>> * Use of 1 hour in clocks_calc_mult_shift >>> * Converted over drivers in drivers/clocksource >> I've not been able to take a deep review yet, but this looks pretty much >> like what we discussed last week, so I'm happy with it so far. Has this >> gotten much testing (on both 32 and 64bit systems?) >> >> One detail: Most of this is likely to go in via tip/timers/core, but the >> 5/17 "arch_timer: Move to generic sched_clock" will need some >> synchronization with Catalin to make sure its ok to go in via tip. Not >> sure what other arm64 changes are pending that would depend or collide >> with that change. > I wouldn't expect anything more than a trivial Kconfig clash with the arm64 > tree, if that. So I also have a branch with these changes based on a branch with only the prereqs that are already merged, so I can provide a pull request that can go in via the aarch64 tree and won't collide with tip. Would that be preferrable? thanks -john -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/